Ionic virtual scroll (change items)

Hello! Please tell me how you can update items so that the list of items is not lost. The algorithm steps are as follows: 1) from the list of tasks https://prnt.sc/t4ald1 we go to the card 2) make some changes or try to take a photo from the camera https://prnt.sc/t4amr0. 3) then return to the list https://prnt.sc/t4andu we get the following https://prnt.sc/t4aobp.

blocks.page.html - https://pastebin.com/X5xaXark
blocks.page.ts - https://pastebin.com/1ZKXimVC

the problem of an empty page when returning to the list is only noticed when removing a photo from the camera